Stable concentrated liquid peroxygen bleach composition

Abstract

A shelf-stable concentrated liquid organic peroxyacid bleach composition comprising a peroxyacid, a ternary solvent system, a stabilizing agent and, preferably, a buffering agent.

What is claimed is: 
     
       1. A storage stabilized concentrated liquid peroxyacid bleach composition, consisting essentially of: a. from about 94% to about 98% by weight of an anhydrous ternary solvent mixture consisting essentially of: i. from 20% to 45% by weight of t-butyl alcohol;   ii. from 20% to 40% by weight of ethylene diacetate;   iii. from 20% to 40% by weight of glycerol triacetate;     b. from about 1% to about 6% by weight of a peroxyacid having the formula ##EQU2## wherein R is an alkylene group containing from 1 to about 12 carbon atoms and X is methyl, chloromethyl, carboxyl, sulfonate or peroxycarboxylate and the water-soluble salts thereof;   c. from 0.005% to 0.05% by weight of a stabilizing agent selected from the group consisting of picolinic acid, dipicolinic acid, and quinaldic acid; and   d. from 0% to 3% by weight of a pH 6.5 to pH 12 buffering agent selected from the group consisting of phosphates, carbonates and bicarbonates.   
     
     
       2. The composition of claim 1 wherein the peroxyacid is selected from the group consisting of diperazelaic acid, perazelaic acid and diperadipic acid. 
     
     
       3. The composition of claim 1 wherein the buffering agent is selected from the group consisting of sodium bicarbonate, sodium carbonate, disodium hydrogen phosphate and sodium dihydrogen phosphate. 
     
     
       4. The composition of claim 3 having a pH within the range of from about 7 to 10.